ICVA Exotic Animal Anesthesia 5

Question 1

Medetomidine is used in exotic small mammals primarily as which type of agent, and what drug fully reverses its effects?

Accepted Answer

Alpha-2 adrenoceptor agonist, reversed by atipamezole

Answer

Medetomidine is an alpha-2 agonist and atipamezole is its specific reversal agent, allowing rapid recovery when needed.

Question 2

Which intraosseous catheter site is most commonly used in avian patients when IV access cannot be obtained?

Accepted Answer

Distal ulna or proximal tibiotarsus

Answer

The distal ulna and proximal tibiotarsus are the preferred intraosseous sites in birds because they are accessible and allow rapid fluid or drug delivery.

Question 3

Which exotic species is known to be particularly sensitive to acepromazine-induced hypotension and vasodilatation, making it a risky premedication choice?

Accepted Answer

Ferrets

Answer

Ferrets have a relatively low blood volume and are prone to severe hypotension with acepromazine, making alpha-2 agonists or benzodiazepines preferred alternatives.

Question 4

In avian anesthesia, which monitoring parameter is considered the gold standard for assessing ventilation adequacy?

Accepted Answer

End-tidal CO2 (ETCO2) via capnography

Answer

ETCO2 via capnography is the gold standard in birds for assessing ventilation because pulse oximetry is often inaccurate due to avian nucleated red blood cells.

Question 5

A green tree python is positioned for surgery and the anesthetist notes apnea lasting 4 minutes. What is the most appropriate action?

Accepted Answer

Provide assisted ventilation immediately and reduce anesthetic concentration

Answer

Snakes under anesthesia frequently develop apnea; assisted ventilation must be initiated promptly and anesthetic depth reassessed to prevent hypoxemia.

(ICVA) International Council for Veterinary Assessment Practice Test

(ICVA) International Council for Veterinary Assessment Practice Test

ICVA Exotic Animal Anesthesia 5